You can get more info here:

http://seattleplans.blogspot.com/2007/05/5242007-dpd-bulletin-highlights.html

and DJC article here:

http://www.urbnlivn.com/2007/02/13/46-story-mixed-use-at-fifth-and-stewart/

Disclaimer: First link also links to 2nd, and yes, that's mah blog. Unfortunately, I don't have a lot of time for it... especially during the summer. :/ http://seattleplans.blogspot.com/

I am almost certain this is one we've already been talking about.

Yep, I was right:
http://www.skyscrapercity.com/showthread.php?t=450808

Before you post a thread on a new development, ya gotta first make a concerted effort to find an existing thread on the same one. :)